基于群组密码的跨链数据共享方案

Cross-Chain Data Sharing Scheme Based on Group-Oriented Cryptography

随着区块链技术的广泛应用,由区块链所支撑的众多业务系统各自构成了数据孤岛,即是说区块链间的智能合约、链上数据等难以跨链互通。为了解决这一问题,提出带群组管理功能的跨链方法。群组管理有助于对相似业务的区块链系统进行统一管理,符合现实应用场景。此外,数据共享是区块链跨链的最基本需求之一,数据在链间传输过程中容易出现泄露等问题。基于群组密码提出跨链数据共享方案,采用广播加密技术实现一对多的数据跨链加密传输,以更高效的方式完成跨链数据共享。

With the widespread application of blockchain technology,many business systems supported by blockchain constitute various data islands;that is to say,it is difficult to interoperate across the blockchain with smart contracts,on-chain data and so on.To address this problem,a cross-chain method with group management function is proposed.Group management is helpful for unified management of blockchain systems of similar businesses,and is in line with real-world application scenarios.In addition,data sharing is one of the most basic needs of cross-chains,but data is prone to leakage and other problems during inter-chain transmission.Based on group cipher,a cross-chain data sharing scheme is proposed,which employs broadcast encryption to realize one-to-many data cross-chain encrypted transmission,so as to complete cross-chain data sharing in a more efficient way.